New York Times: “Our analysis suggests partisanship itself, intentional or not, plays a powerful role when Americans uproot and find a new home. And their very personal decisions about where to resettle help power the churn of migration that is continuously reshaping American life at the neighborhood level and contributing to a sense that Americans are siloed in echo chambers, online and in their daily lives.
”“It also has real stakes for our elections: Political scientists say the more partisan a district or state becomes, the less a candidate needs to woo voters from the other party — or, after winning, govern on their behalf.”